Proceedings ArticleDOI
Lift and the Leading Edge Vortex
About:
The article was published on 2012-01-09. It has received 44 citations till now. The article focuses on the topics: Vortex lift & Starting vortex.read more
Citations
More filters
Journal ArticleDOI
Low-order phenomenological modeling of leading-edge vortex formation
Chengjie Wang,Jeff D. Eldredge +1 more
TL;DR: In this article, a low-order point vortex model for the two-dimensional unsteady aerodynamics of a flat plate wing section is developed, where a vortex is released from both the trailing and leading edges of the flat plate, and the strength of each is determined by enforcing the Kutta condition at the edges.
Journal ArticleDOI
Hydrodynamics of swimming in stingrays: numerical simulations and the role of the leading-edge vortex
TL;DR: In this paper, large-eddy simulations of a self-propelled stingray, modelled closely after the freshwater stingray Potamotrygon orbignyi, are performed.
Journal ArticleDOI
Three-dimensional flow structures and unsteady forces on pitching and surging revolving flat plates
TL;DR: In this article, the authors explore the evolution of three-dimensional flow structures of revolving low-aspect-ratio flat plates in combination with force measurements at a Reynolds number of 10,000.
Journal ArticleDOI
Detection and tracking of vortex phenomena using Lagrangian coherent structures
Yangzi Huang,Melissa Green +1 more
TL;DR: In this article, the formation and shedding of vortices in two vortex-dominated flows around an actuated flat plate are studied to develop a better method of identifying and tracking coherent structures in unsteady flows.
Journal ArticleDOI
Leading edge vortices in lesser long-nosed bats occurring at slow but not fast flight speeds.
Florian T. Muijres,Florian T. Muijres,L. Christoffer Johansson,York Winter,Anders Hedenström +4 more
TL;DR: The flow above the wing of lesser long-nosed bats at slow and cruising speed using particle image velocimetry (PIV) is determined and suggests that bats are able to control the development of the LEV and potential control mechanisms are discussed.
References
More filters
Journal ArticleDOI
Leading-edge vortices in insect flight
Charles P. Ellington,Coen van den Berg,Coen van den Berg,Alexander P. Willmott,Adrian L. R. Thomas,Adrian L. R. Thomas +5 more
TL;DR: In this article, the authors visualized the airflow around the wings of the hawkmoth Manduca sexta and a 'hovering' large mechanical model, and found an intense leading-edge vortex was found on the downstroke, of sufficient strength to explain the high-lift forces.
Journal ArticleDOI
Combining PIV, POD and vortex identification algorithms for the study of unsteady turbulent swirling flows
TL;DR: In this paper, the proper orthogonal decomposition (POD) is combined with two new vortex identification functions, Γ1 and Γ2, to identify the locations of the center and boundary of the vortex on the basis of the velocity field.
Journal ArticleDOI
The novel aerodynamics of insect flight: applications to micro-air vehicles.
TL;DR: Design characteristics of insect-based flying machines are presented, along with estimates of the mass supported, the mechanical power requirement and maximum flight speeds over a wide range of sizes and frequencies.
Journal ArticleDOI
Spanwise flow and the attachment of the leading-edge vortex on insect wings
TL;DR: It is reported that, at the Reynolds numbers matching the flows relevant for most insects, flapping wings do not generate a spiral vortex akin to that produced by delta-wing aircraft, and it is found that limiting spanwise flow with fences and edge baffles does not cause detachment of the leading-edge vortex.
Journal ArticleDOI
Unsteady aerodynamic performance of model wings at low reynolds numbers
TL;DR: In this article, the authors measured the time dependence of aerodynamic forces for a simple yet important motion, rapid acceleration from rest to a constant velocity at a fixed angle of attack, and found that at angles of attack below 13.5°, there was virtually no evidence of a delay in the generation of lift, in contrast to similar studies made at higher Reynolds numbers.
Related Papers (5)
Reynolds number effects on leading edge vortex development on a waving wing
Anya R. Jones,Holger Babinsky +1 more